Norton portable straight snagging wheel in high performance zirconia alumina NorZon III specifications provide consistent, quality performance in foundries, welding shops, fabrication facilities, steel mills and shipyards. Engineered for high-powered machines, these snagging wheels maximize your productivity. Typical applications include removing flaws and cracks, removing gates, risers and parting lines, smoothing weld seams, cleaning castings, rough beveling, preparing surfaces for plating or painting.